Lamp shade



'A iiiflo, 192s. I E. B. WILSON 2 Sheets-Sheet 1 LAMP SHAPE Filed April 27, 1925 E. B. WILSON LAMP SHADE A ril 10, 1928'. 1,665,617

Filed April 27, 1925 2 Sheets-Sheet 2 vweutoz Patented Apr. 10, 1928.

UNITED STATES PATENT" OFFICE.

EDWIN BIRD WILSON, OF FOREST HILLS. YORK, ASSIGNOR DESIGN LABORA- TORIES, INCORPORATED, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

LAMP SHADE.

Application filed April 27.1925. semi no. 25,992.

This invention relates to lamp shades, and more particularly to shades adapted for use with incandescent electric light bulbs.

It is the object of this invention to prof.

vide a lamp shade of simple construction, one that lends itself to manufacture of sheet brass or other similar material, presents the least obstruction to the diffusion of light and is readily attachable to drop lights, side brackets, candelabra, or the like.

The invention will be more readily understood from the following description of lamp shade structures constructed in accordance with the present invention, and the appended claims.

In the drawlngs, one embodiment of the invention is illustrated in'Figs. 1, .2, 3, 4 and 5, and another embodiment'in Figs. 6 to 12. Fig. 1 illustrates an assembled shade, and Figs. 2, 3, 4 and 5 are separate views of the fourparts of which the shade is assembld. Similarly, Fig. 6 is an assembled view of another embodiment of the inven-- tion, Figs. 7, 8, 9, and 11 being separate views of parts of which the shade is assembled.

Referring now to Figs. 1 to 5, the lamp shade is composed of two "peaked frames 1 and 2', held together by means of a ring 3 and suspended by means of'a hanger 4. Preferably, each of these parts is cut or stamped of thin sheet brass. The frame 1 is formed with outside notches 5, 6, 7 and 8. The frame. 2 is provided with two outside notches 9 and 10 and'two inside notches 11 and 12. The ring 3 is provided with four inside notches 13, 14, 15 and 16. The frames 1 and 2 are of the same width and height. They are' assembled by slightly bending frame 1 and inserting it atright. angles within frame 2 until the notches 5 and 8 are opposite notches 12.and 11. The corresponding notches being of the same depth but cut in opposite directions, when the frame 1 is released, the two frames will grip each other [and .present the appearance shown in Fig. 1. The two frames 1 and 2 may now be swung around the pivot points constituted by the interlocking notches. In order to hold them against rotation, the ring 3 is placed over the frames 1 and 2 with the notches 13 to 16 enga ing the outside n otchefs 7, 6, 9 and 10 provi ed'i'n the frame mem-- bers. The handle is then bent into the loop shape indicated in Fig. 1 with its slotted ends 17 and 18 straddling the peak of frame 2. By means of rivets which may be passed through openings 19 provided in the forked ends of loop 4 and the openings 2Q provided near the peak of frame 1, the loop may be fastened to the latter. By means ofthe loop 4 the shade may be attached'to an electric cord 21 from which an incandescent light 22 hangs within'the shade.

The frame members 1 and 2, being edgewise placed with respect to the light 22, will not materially obstruct'the diffusion of light and will therefore cast practically .no shadows. Only the ring 3 will cast a shadow on the'ceiling. Even if made of thin stock, the shade will be of rugged construction. The parts may be either separately shipped or the frames 1 and 2 may be interlocked and rotated flat one on top ofthe other around their pivot points.

side notches 39 and 40. The ring 41 provided with notches 42 will interlock with the frames at notches 43, 44, 45, 46, 47, 48,- provided in the frame members. In this embodiment of the invention no separate handle need be attached, as the handle 49 forms an extension of frame 30.

The shade may be used also for producing indirect lighting efiects by inserting a bowl 50 (Fig. 10) into the lower part of the frame. The bowl is provided with indentations with which projections '51, provided in frames 30, 31 and 32, register. Only one of these-indentations 52 is illustrated in the drawing. Since such bowl may also serve to lock the frame members in place, the use of the ring 41 may be done away with.

For want of a better term the device forming the object of the present invention is referred to as a lamp shade. It is not a shade in the generally accepted meaning of the word and obviously the invention is applicable to lanterns, lamps, chandeliers, etc., of a widely varying character.

What I claim is: V

1. In a lamp fixture, two frame pieces,

notches in one frame piece at which the two frames are interlocked against relative horizontal and vertical displacements, and airing;

rality of frame members each formed from a unitary piece of relatively thin stock, slots in the frame members, another frame member said frame member being formed from a unitary piece of relatively thin stock and having slots therein, said first mentioned frame membersintersecting one another and being positively interlocked with one another and with the other frame member by virtue of the slots alone, whereby an integral,

three dimensional, substantially rigid unit is formed.

4. In a self supporting frame unit,-a plurality of frame members each formed from a unitary piece of relatively thin stock and comprising a portion having slots therein, an annular member having slots therein, said first mentioned members being interlocked by means of the slots therein whereby said members are prevented from any relative displacement in adirection parallel to their axes, and said annular member positively intel-locked with said first mentioned members whereby the first mentioned members are secured against relative angular displacement about their axes.

5. In a self supporting frameunit, a plurality of frame members each comprising a single unitary piece of material having a rim portion and an area inside the periphery thereof cutaway, notches on the inside of the rims of one of said members and notches on the outside of the rim of another of said members, said members being positively in terlocked by virtue of some of said notches whereby relativemovement of the members parallel to their; axes is prevented, another member comprising a single unitary piece of material having notches therein, said last mentioned member being positively interlocked with said first mentioned members by cooperation of the notches insaid last mentioned members and said first mentioned members whereby said first mentioned members are secured against relative angular displacement and said last member is secured against displacement in any lirection relative to said first mentioned members.

6. In a fixture, a plurality of frame members each formed of a unitary piece of flexible material, said members being mutually interlocked by means of notches provided therein, and an additional member for looking said frame members against relative rotary displacements.

7. In an electric lamp fixture, a plurality of frame members each formed of a unitary piece of flexible material, said members being mutually interlocked by means of notches provided therein, and an additional member also provided with notches and locking said frame members against relative rotary displacements. 5 I

8. As a new article of manufacture, a three dimensional object comprising a plurality of members each having an opening therein, one of said members being notched on the inside and another correspondingly notchedon the outside, whereby said one of said members may beheld interlocked with the other of said members, and means for preventing gelative rotary displacements of said memers.

9. As a new article of manufacture, a three dimensional object comprising a plurality of members, one of said members having an opening therein and notches on the inside edge pf the member for engaging another of.

said members, and means for preventing gelative rotary displacement of said memers.

In testimony whereof, I have signed my name to'this specification this 24th 'day of April, 1925. s V

EDWIN BIRD WILSON. 

